Owen and Alicia aren't happy that their best friends, Bob and Lolie, will both be coming to the wedding without a partner. So they plot to set them up, respectively, with Diana, the wedding cake caterer, and Dr Joe. Of course, they don't realize that Bob and Lolie are already sleeping with each other. At the cake tasting, things don't go exactly to Owen and Alicia's plans, but at least Bob and Lolie's secret is still safe.
Owen, Alicia and Lolie are aghast when Bob leaves their engagement party for a sexual tryst with Alicia's friend Charlotte - who is herself getting married in a week - and Bob is infuriated by their assumption that he is too nice to go through with it. Trouble is, they're right; and after Lolie taunts him with the fact, it's they who tumble into bed together.
It's a blueprint for disaster when Owen decks a rude contractor for making an off-color remark about Alicia. However, Owen's guilt over the incident is offset by Bob's delight, improved productivity at the job site, and Alicia's reluctant sexual excitement at her fiancé's new-found machismo. Meanwhile, Heather falls for the hunk temporarily replacing the despised ""sandwich lady"", but can't get him to notice her.
Owen can hardly mask his skepticism when his older brother Cameron pays him an unexpected visit and promises to make amends for a life straight out of pulp fiction; meanwhile, Bob dates Alicia's friend only to discover that they dislike each other on sight - and that she is his ex-girlfriend's therapist. (""Boy, you must not be very good!"").